Concrete-molding machine



Dec. 4, 1928. 1,693,852

T. MCQUAIN CONCRETE MOhDlNG` MCHINE Filed Aug. 9, 1927 4ATTORNEY Patented Dec. 4v,V 1928.

UNITED STATES THOMAS MCQUAIN, oF OCEAN PARK, oALIFoRNA.

.CONCRETE-MOLDING MACHINE.

Ap'piicaaonmed August 9, 1927.V sirivo. 211,807.

This invention relates to `cement bloc/li` molding machines and pertains to a machine whereby blocks, composed ot cement or other material, ot' many desired sizes and coniigurations may be expeditiously and e'liiciently molded. y

y The above mentionedand other objects of the invention will be more'fully disclosed in the following specilications and will beexlemplitied in the accompanying drawings, in Y which :l Figure 1 is aplan View oil a moldingr machine,enjibodyinxcil the general iteaturefolE the invention. y l

Figure 2 is a longitudinal vertical section thereof taken on the line 2*-2of F injure l.

. Figure 3 isa similar view to that of Figure i 2 illustrating' howxwedge shaped arch blocks may be formed on the machine.

versely disposed slots 12 andl at one .of its.V

lends and a pair transversely ,disposed slots 14 and 15 .at its opposite end.

Mounted in each oi' the above mentionedv slots is an eye bolt 16 which constitutes a hinge Vmembenadap'ted to be adjusted vertically'y Y in the slots or longitudinally andtransversely along the slots, and to be held in their adjusted position by means of the nuts 17 disposed above and below the surfaces of table 5 and threaded on to said bolts as shown. l

Side wall members 1S and 19 are hinged respectively to the bolts'16 disposed'linA slots 12 and 14 and the bolts 16 disposed inV slots 13 and 15, the side wall member being` irovided with ears 20 which` straddle the eyes of the` bolts 16 and with aperturesv which register therewith through which the pins 21 pass, thus hingingr the sides to the bolts.

End wallmembers 22 and 23 areliinged respectively to the bolts 1:6 inslots 8 and. 9

In carrying out the invention, the machine is identicala des .for both.

Supported on theiipper ends of bolts 24 is a bottom Wall niember`25 which is' disposed between the .side and end wallmembersl and 19 and 22 and 23. y y f Uien itis desired toforma hollow .block or one'having cavity therein, the bottom wall y member 25 is provided with a centrally disposed aperture v26 tor` the reception oi a core 27adapted to be projected upwardlyinto the molding' chamber'28 formed between the side.- and end wall members and the bottom wall member. `f s Y Y The core 27 is provided with a downward- K ly projecting stem 29 'which is adapted toV re-p` ciprocate ina sleeve 30 securedrjto' the .leg

'tramesG and 7 and'is provided at-its' lower end with a' slot 31 adapted to'receive'pone end of.' a lever 32 which is secured atit's oppositeV end to a rod 33 pivoted to the frame legs. Secured to rod 33. is 7a foot lever .34;,byI a ledge and. held in engagement therewith by a spring* 38. Pivot'ed to the` lower end of lever 36 is a linlfBQ which in turn isfpivote'd at 40' to one end of a rod l1, the otherend of said manipulation ot which the Vcore. `27 maybe rod being piveted at l2 tothe lever 32 intermediate oit itsends.' A spring` 13 isA secured to and between thelever BG-andlinl 89 and is adapted to yieldinely hold these nien'ibers at approximately right angles with each other.; The table 5 is provided with anaperture y lll through whichthe core 27 may pass. ln order( thatV the side and end wall-mem-V bers may be held together lirmly .to `form the i molding' chaniber28 a rod ll5 is provided for .each of thevend wall members 22 and 23 and u as the Construction at eachendwall member criptiony ofV one will sullice The rod 115 'pertorins the function of a rock kr 'i shaftand is journaled in bearings'461and 47 secured to the end lwall member andis 'pro-Q vided at each ofits endsV with a hook 48 adapt-` ed to engage with pmsflQ proliectmg' from the side walll member, said rod being provided with a suitable handle 50 inorder` that it may be conveniently rocked to engage `or disengage the hooks from the pms. 1 f

i molding chambers and to this end aslidable It is sometimes desirable that the molding chamber 28 be partitioned 'ofi'A to form two partition 51 is mountedin eachen'd wall mein-` ber adapted to slide in top and bottomguideways 52 and 53 formed on the end Walllmem- `ber and in order that these partitions may be operated siiiiultaneously"withthe latch hooks 48, a segmental gear 54 maybe secured to the rod 45 by means of a set screw 55.

VThe slide partition isiprovided with a rack Y bar 56 which meshes with the segmental gear 54. `By thisarrangement it will be obvious` that when the rod 45 is manipulated to engage the hooks 48 with" pins 49 the slide bar will be thrown inwardly toward the core VVifhen it is desired to dispense with the i slide partition bar it may be disconnected with the inner'edge ofthe end wa from therod 45 by loosening the set screw 55 Y and thenmoved until its inner edge is lush I ll member when it will `remain idle during Vlatching j operations.

`as shown in Figure The internal faces of the side wall member and the end l"wall members and the bottom Wall member may be of many desired configurations, as for instance, the end wall `member may be provided'with' the protu` Aherances 57, thesidewall members with the serrations 58 andthe bottom may be arched When the various parts are in the position l shown in the drawings, the cement mixture j is pouredinto the Vchamber L28 and vafter it j becomes sufficiently set, the foot lever 34 may `bers hinged tosaid frame,l a bottom member] slidable partitions mountedoii said end wall f be kicked npthus'releasing the lever 36 from j engagement with the ledge 37 andthen acting to withdraw the core from the block.

The lever 50 may be manipulated to release tions.

the hooks48 and the end and sidewall mein- `bersmay be then rocked on their hinges` away from the sides of the finished block orv By hinging the end and side wall members adjacent their lower edges to the eye bolts 1G it will be obvious thatthey maybe tilted as shown in Figure to' formwedge shaped f blocks"` and that the bottom wall member may be adjusted vertically to .form blocks of any desired depth..` When blocks of various di;-

' mensionsandconfigurations areto be made it willfonly be necessary to supply correspondj ing side en-dfan'd bottom wall members, and

` theeye bolts 16 may be adjusted along their 4 y moldiiiof chamber.

v2 l u j"- 1,693,852

respectiveslots to accommodate these menibers.- f 1 f Y Having 'thus described my vinvention what Iclaim isp..

. l. A block molding machine comprising a i iframe; hinge members adapted for longi-` tudinal adjust-inent on said frame; side wall members'hingedrto `sai-d hinge members j hinge members adapte-d for adjust1iienttrans` verselyof said frame; end wall members hinged to` said second mentioned hinge mem-f` bers; bottom wallfmeniber and means for supporting said bottom wall member on said trame. j j 2. A block vmolding machine eoiiiprising'i frame; `tivo sets of hinge members adapted .I tor longitudinal and verticaladjustmenton said" `frame; side wall members hinged to said hinge members; twosets of hinge `mem" bers adapted ior transverseand vertical adf A justnient onzsaid frame; end wall members hinged to said hinge members; a bottoni"Wallf` member ada )ted for vertical adj ustinent with respect to said'frame acore memberinounted on said frame adapted/for verticaladjustment therewith and means for latchingsaid `side and end Wall members- 'together tQjfmj` a 3. Atblock molding machine comprising a table provided with longitudinally and transfr versely disposed slots;l eye" bolts `c'onstituting.-`

hinge members dis osed in` said slots; sidef and end wallmem ers hinged to said eye bolts and nuts jon'saidyeyefboltsdisposed above and" below` Saidtable, whereby said bolts may be adjusted vertically and along their respective slots and `secured i'n'ptheir` Y adjusted position means ofsaid nuts',V l `4. A blockmolding machine comprising a frame, side wall members and end wall`1neni" 5. A block molding machine comprising a frame,iside Wall membersand end Wall mein-j chamber, racks on said partitions, rock shafts,r i

loo Y members to 'slide intofaiid `out ofthe mold .i j j chamber, and means for sliding said parti-'ffl segmental piiiioiis on said rock shafts in meshf with said racks, and `means for rocking said?" j shafts t'cause said pinlons to engagelsaid racks to `s]`i' :le"saidA racks togetherwith said partitions. i I i j *j In testimony whereof hereunto aliix 4my j Signaturav 'f m s Y 1 THOMASMCQUAIN. 

